The field book covers the field work of Donald F. MacDonald in the Canal Zone for station number 1806-1816. Entries include graphs with measurements for each station number. There is a loose insert containing notes that are headed with location and narrative in style. They describe the geological characteristics of the canal shoreline for Bohio, locks at Pedro Miguel, and San Pablo station.
Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.